Q1 · 2023 · Paper 1Simple familiar1 mark
QUESTION 1
An object is unable to accelerate to the speed of light because
(A)
length contraction will change the height of the object.
(B)
time dilation will decrease the velocity of the object.
(C)
the object will gain infinite momentum.
(D)
the inertia of the object will decrease.
WORKED SOLUTION
1 markAnswer C
ANSWER
C
Worked solution
As an object with non-zero rest mass approaches , grows without bound, so its relativistic momentum would approach infinity. Option C.
Selects option C.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.